Retinal vessel oxygen saturation and vessel diameter in retinitis pigmentosa
نویسندگان
چکیده
منابع مشابه
Retinal vessel oxygen saturation in healthy individuals.
PURPOSE We measured oxygen saturation in retinal vessels of healthy eyes to determine the effects of age, sex, and cardiovascular parameters, as well as the reliability of the measurements and topographic differences. METHODS The Oxymap T1 retinal oximeter is based on a fundus camera. It simultaneously captures retinal images at two different wavelengths and estimates retinal vessel oxygen sa...
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BACKGROUND The aim of this study was to analyze the shifts in retinal vessel diameter and oxygen saturation in diabetic patients with and without diabetic retinopathy (DR), as well as to assess the association between diabetes duration and either vessel diameter or oxygen saturation. METHODS In total, 99 Type 2 DM patients were recruited for the study and were divided into three groups: DM wi...
متن کاملQuantitative analysis of retinal vessel attenuation in eyes with retinitis pigmentosa.
PURPOSE Retinal vessel attenuation is a key finding in the diagnosis of retinitis pigmentosa (RP), but there have been no studies to determine whether quantitative measurement of this retinal sign is useful. We aimed to investigate retinal vessel caliber and its relationship with the severity of RP. METHODS This is a cross-sectional study based on 74 patients (145 eyes) with RP who had visual...
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Accurate measurement of vessel diameters on retinal images plays an important part in diagnosing cardiovascular diseases and early signs of certain systemic diseases, such as diabetes and hypertension. In this study we develop new method based on computer aided to determine the width of retinal blood vessels by analysing the color fundus image. Retinal vessel diameter was measured based on bloo...
متن کاملContinuous retinal vessel diameter measurements: the future in retinal vessel assessment?
PURPOSE To establish an alternative method, sequential and diameter response analysis (SDRA), to determine dynamic retinal vessel responses and their time course in serial stimulation compared with the established method of averaged diameter responses and standard static assessment. METHODS SDRA focuses on individual time and diameter responses, taking into account the fluctuation in baseline...
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ژورنال
عنوان ژورنال: Acta Ophthalmologica
سال: 2014
ISSN: 1755-375X
DOI: 10.1111/aos.12359